SOLUTION: one man working alone can paint a room in 5 hours, another man can paint it in 7 hours alone. How long will it take two men working together to paint the room?

SOLUTION: one man working alone can paint a room in 5 hours, another man can paint it in 7 hours alone. How long will it take two men working together to paint the room?

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Question 386140: one man working alone can paint a room in 5 hours, another man can paint it in 7 hours alone. How long will it take two men working together to paint the room?
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Hint:
Use the inverses, rooms per hour.

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